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Finding the Fourth Proportional to 279,521.32, 418,753.00 and 165,327.11

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Solution

The fourth proportional to 279,521.32, 418,753.00 and 165,327.11 is: 247,677.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,521.32 : 418,753.00 = 165,327.11 : x
  2. Step 2: Convert to fraction form
    279,521.32/418,753.00 = 165,327.11/x
  3. Step 3: Cross multiply
    279,521.32x = 418,753.00 × 165,327.11
  4. Step 4: Simplify right side
    279,521.32x = 69,231,224,402.57
  5. Step 5: Solve for x
    x = 69,231,224,402.57/279,521.32
  6. Step 6: Final answer
    x = 247,677.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.